參數(shù)資料
型號(hào): TDA5251F1
廠商: INFINEON TECHNOLOGIES AG
英文描述: ASK/FSK 315MHz Wireless Transceiver
中文描述: 詢(xún)價(jià)/ FSK信號(hào)315MHz的無(wú)線收發(fā)器
文件頁(yè)數(shù): 55/88頁(yè)
文件大?。?/td> 2086K
代理商: TDA5251F1
TDA5251 F1
Version 1.0
Application
Preliminary Specification
55
2003-02-18
Confidential
The default mode is bipolar switch with no ramp function (D0 = 1, D1 = D2 = 0), which is suitable
for all bitrates.
3.2.6
Finetuning and FSK modulation relevant registers
Case FSK-RX or ASK-TX (C
tune2
)
:
Case FSK-TX or ASK-RX (C
tune1
and C
tune2
):
Table 3-3
D0
0
1
1
1
1
Sub Address 0EH: XTAL_CONFIG
D2
Switch mode
n.a.
0
bipolar (default)
0
1
1
D1
n.a.
0
1
0
1
Ramp time
< 0.2 s
< 0.2 s
4 s
8 s
12 s
Max. Bitrate
> 32 kBit/s NRZ
> 32 kBit/s NRZ
32 kBit/s NRZ
16 kBit/s NRZ
12 kBit/s NRZ
FET
bipolar
bipolar
bipolar
Table 3-4
Bit
D5
D4
D3
D2
D1
D0
Sub Address 02H: XTAL_TUNING
Function
Nominal_Frequ_5
Nominal_Frequ_4
Nominal_Frequ_3
Nominal_Frequ_2
Nominal_Frequ_1
Nominal_Frequ_0
Value
8pF
4pF
2pF
1pF
500fF
250fF
Description
Setting for
nominal
frequency
ASK-TX
FSK-RX
(Ctune2)
Default
0
1
0
0
1
0
Table 3-5
Bit
D13
D12
D11
D10
D9
D8
D5
D4
D3
D2
D1
D0
Sub Address 01H: FSK
Function
FSK+5
FSK+4
FSK+3
FSK+2
FSK+1
FSK+0
FSK-5
FSK-4
FSK-3
FSK-2
FSK-1
FSK-0
Value
8pF
4pF
2pF
1pF
500fF
250fF
4pF
2pF
1pF
500fF
250fF
125fF
Description
Setting for
positive
frequency
shift: +FSK
or ASK-RX
(Ctune2)
Default
0
0
1
0
1
0
0
0
1
1
0
0
Setting for
negative
frequency
shift: -FSK
(Ctune1)
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